blob: 3e22bff8647957e70f112f780b244c5f943a4a17 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
#!/bin/sh
### BEGIN INIT INFO
# Provides: brightness
# Required-Start: $local_fs
# Required-Stop: $local_fs
# Default-Start: S
# Default-Stop: 0 6
# Short-Description: Save and restore brightness level between restarts.
# Description: This script saves the brightness level between restarts.
# It is called from the boot, halt and reboot scripts.
### END INIT INFO
readonly SAVEDFILE=/var/lib/initscripts/brightness
readonly DEFAULT_LEVEL=4
readonly SYS_CONTROL=/sys/class/backlight/acpi_video0/brightness
readonly SYS_MAXIMUM=/sys/class/backlight/acpi_video0/max_brightness
. /lib/init/vars.sh
. /lib/lsb/init-functions
do_status () {
MSG="Current brightness level is $(cat ${SYS_CONTROL})"
if [ -f $SAVEDFILE ] ; then
log_success_msg "${MSG}, saved value is $(cat ${SAVEDFILE})"
return 0
else
log_failure_msg "${MSG}, there is no saved value"
return 4
fi
}
do_start () {
[ "${VERBOSE}" = no ] ||
log_action_begin_msg "Initializing brightness level"
if [ -f "${SAVEDFILE}" ] ; then
cat "${SAVEDFILE}" > "${SYS_CONTROL}"
else
cat "${SYS_MAXIMUM}" > "${SYS_CONTROL}"
fi
ES=$?
[ "${VERBOSE}" = no ] ||
log_action_end_msg $ES
}
do_stop () {
[ "${VERBOSE}" = no ] ||
log_action_begin_msg "Saving brightness level"
cat "${SYS_CONTROL}" > "${SAVEDFILE}"
ES=$?
[ "$VERBOSE" = no ] ||
log_action_end_msg $ES
}
case "$1" in
(start) do_start ;;
(stop) do_stop ;;
(status) do_status ;;
(restart|reload|force-reload)
echo "Error: argument '$1' not supported" >&2
exit 3
;;
(*)
echo "Usage: brightness start|stop" >&2
exit 3
;;
esac
|
